Home / 1,218,700.35-1,681,785.92-674,824.46

Finding the Fourth Proportional to 1,218,700.35, 1,681,785.92 and 674,824.46

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Solution

The fourth proportional to 1,218,700.35, 1,681,785.92 and 674,824.46 is: 931,246.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,218,700.35 : 1,681,785.92 = 674,824.46 : x
  2. Step 2: Convert to fraction form
    1,218,700.35/1,681,785.92 = 674,824.46/x
  3. Step 3: Cross multiply
    1,218,700.35x = 1,681,785.92 × 674,824.46
  4. Step 4: Simplify right side
    1,218,700.35x = 1,134,910,268,577.73
  5. Step 5: Solve for x
    x = 1,134,910,268,577.73/1,218,700.35
  6. Step 6: Final answer
    x = 931,246.36

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.